Reference points for getting a target in a soccer competition. A probabilistic model with applications to the Spanish and English Premier League

We model the probabilities that a soccer team gets a target, for example, to play the Champions League, the UEFA Europa League or preserve the category. Taking into account the points won until de mth matchday of the competition, when the winter transfer window is closed. We give closed-form expressions for the probabilities of reaching the goals. We also introduce a risk measure which is going to give us the smallest initial points needed to ensure that the probability of getting the target is larger than a given level.     

Calculation of the Prokhorov distance by optimal quantization and maximum flow

Calculating exact values of the Prokhorov metric for the set of probability distributions on a metric space is a challenging problem. In this paper probability distributions are approximated by finite-support distributions through optimal or quasi-optimal quantization, in such a way that exact calculation of the Prokhorov distance between a distribution and a quantizer can be performed. The exact value of the Prokhorov distance between two quantizers is obtained by solving an optimization problem through the Simplex method. This last value is used to approximate the Prokhorov distance between the two initial distributions, and the accuracy of the approximation is measured. We illustrate the method on various univariate and bivariate probability distributions. Approximation of bivariate standard normal distributions by quasi-optimal quantizers is also considered.     

Socioeconomic Classification of the Working-Age Brazilian Population: A Joint Latent Class Analysis Using Social Class and Asset-Based Perspectives

This paper presents and applies a methodology of socioeconomic classification that integrates asset- and social class approaches. We employ data from the 2013 Brazilian National Household Survey and use latent class analysis to identify clusters and classify the working population. With regard to social class the Brazilian occupations are classified based on the European Socioeconomic Classification (ESeC) schema and an indicator of employment status. As for household wealth, we use the items related to household condition, ownership of durable goods and access to public services with the highest discriminatory power. We also make use of variables that account for the Brazilian spatial and socio-demographic heterogeneity. We found four clusters which we term latent socioeconomic stratum (LSeS). When compared we found an ordered pattern from the best-off LSeS (1) to the worst-off (4) with respect to household wealth and ESeC classes. Nevertheless, although the class composition of each LSeS reveals a distinct concentration of specific ESeC classes, all classes are present in each LSeS. Controlling for social class, differences in household wealth are more marked between LSeS than between social classes within the same LSeS. Hence, the methodology unveils the latent socioeconomic strata, reveals a class schema for each stratum and points out potential stratum fractions within them. The results were validated using variables external to the model, namely household food security status and years of schooling. The external validation revealed the same ordered pattern and the presence of stratum fractions.     

On the use of priors in goodness‐of‐fit tests

Priors are introduced into goodness‐of‐fit tests, both for unknown parameters in the tested distribution and on the alternative density. Neyman–Pearson theory leads to the test with the highest expected power. To make the test practical, we seek priors that make it likely a priori that the power will be larger than the level of the test but not too close to one. As a result, priors are sample size dependent. We explore this procedure in particular for priors that are defined via a Gaussian process approximation for the logarithm of the alternative density. In the case of testing for the uniform distribution, we show that the optimal test is of the U‐statistic type and establish limiting distributions for the optimal test statistic, both under the null hypothesis and averaged over the alternative hypotheses. The optimal test statistic is shown to be of the Cramér–von Mises type for specific choices of the Gaussian process involved. The methodology when parameters in the tested distribution are unknown is discussed and illustrated in the case of testing for the von Mises distribution. The Canadian Journal of Statistics 47: 560–579; 2019 © 2019 Statistical Society of Canada     

A Novel Approach to Chemical Mixture Risk Assessment—Linking Data from Population‐Based Epidemiology and Experimental Animal Tests

Humans are continuously exposed to chemicals with suspected or proven endocrine disrupting chemicals (EDCs). Risk management of EDCs presents a major unmet challenge because the available data for adverse health effects are generated by examining one compound at a time, whereas real‐life exposures are to mixtures of chemicals. In this work, we integrate epidemiological and experimental evidence toward a whole mixture strategy for risk assessment. To illustrate, we conduct the following four steps in a case study: (1) identification of single EDCs (“bad actors”)—measured in prenatal blood/urine in the SELMA study—that are associated with a shorter anogenital distance (AGD) in baby boys; (2) definition and construction of a “typical” mixture consisting of the “bad actors” identified in Step 1; (3) experimentally testing this mixture in an in vivo animal model to estimate a dose–response relationship and determine a point of departure (i.e., reference dose [RfD]) associated with an adverse health outcome; and (4) use a statistical measure of “sufficient similarity” to compare the experimental RfD (from Step 3) to the exposure measured in the human population and generate a “similar mixture risk indicator” (SMRI). The objective of this exercise is to generate a proof of concept for the systematic integration of epidemiological and experimental evidence with mixture risk assessment strategies. Using a whole mixture approach, we could find a higher rate of pregnant women under risk (13%) when comparing with the data from more traditional models of additivity (3%), or a compound‐by‐compound strategy (1.6%).     

Is Social Innovation Fostering Satisfaction and Well-Being at Work? Insights from Employment in Social Enterprises Providing Long-Term Eldercare Services

Considering insights from socio-economics, work psychology, and occupational health, this study focuses on the job satisfaction and well-being of employees working in nonprofit social enterprises (SE). We question the idea suggested by the recent literature that working for a SE brings employees a high level of job satisfaction and well-being. We also investigate whether being involved in social innovation is associated with even higher job satisfaction and well-being. Indeed, understood as a manifestation of positive social change, social innovation is expected to improve outcomes such as the quality of life at work. However, because social innovation is an umbrella concept, it embraces different innovation-related concepts. Here we explore the distinction between service innovation and workplace innovation. This article applies a multivariate analysis to an original dataset covering 1134 employees working in the field of elder homecare in Wallonia. Its implications for social entrepreneurs and scholars are also examined.     

Urban or rural fragments: which soil use in forest surroundings induces greater litter deposition?

Urban Ecosystems - The soil use in surroundings of forest remnants, as well as, variations in seasonality and rainfall totals from each year might influence the composition, structure, and...     

Social work education in Spain: evaluation and challenges for a new generation of social workers

ABSTRACT

The European social integration model was built on two main pillars: employment and access to the welfare state. European social work education was mainly oriented to training professionals in order to promote this inclusion through case management and the provision of benefits. This influence was very intense in the curricular content of Spanish social work programs. The new social risks and the European convergence in higher education have promoted curricular changes, but is it enough?. This paper aims to identify the content and limits of current social work education in Spain. To this end, a comparative analysis of social work education in public universities of Spain was performed. This information has been contrasted with professionals, teachers and social work students. The results evidence the gap of these contents with the real professional needs. This paper proposes several alternatives and approaches in new intergenerational methodologies and technological tools to train a new generation of social workers     

Anti-Afropolitan ethics and the performative politics of online scambaiting

ABSTRACT

Online scambaiting problematises the identity of the 419 scammer whose virtual labours connect significantly to the digital dimensions of Afropolitanism. When examined through the photographic practices demanded of 419 scammers in several Internet communities, scambaiting, a form of Internet vigilantism that is targeted at online scammers to avert scam, produces epistemic violence which evacuates the black male body of human dignity. Although scambaiting is potentially an ethical project, it embeds a system of oppression that generates Afropolitan masculinities, caricatured performances of the bodies of 419 scammers exhibited online as objects of shame. As a philosophical and aesthetic response to translocality and mobility, Afropolitanism stresses the cultural experiences and agency of ordinary Africans who assert a global sense of awareness. As both the Afropolitan subject and the 419 scammer are entangled in the assertion of agency, the globalism of both is shown to converge at the intersection of the digital. Building on Lisa Nakamura's essay on dogshaming, I argue that the sexual exploitation of black bodies on scambaiting websites gestures at technology's complicity in interpellating digital subjects and circulating social injustices. Unlike Nakamura, I foreground the performative aspects of scambaiting and connect these to Afropolitanism's intrinsic digitality.     

HIV/AIDS stigma manifestations during clinical interactions with MSM in Puerto Rico

HIV/AIDS stigma can have detrimental effects on physician/patient interactions when manifested by health professionals. Unfortunately, HIV/AIDS stigma is usually manifested in an intersectional manner with other preexisting stigmas, including stigma toward men who have sex with men (MSM). Therefore, our study aimed to examine the behavioral manifestations of HIV/AIDS stigma among physicians in training during simulated clinical interactions with MSM, and explore the interrelation between HIV/AIDS stigma attitudes and behaviors. We implemented an experimental design using Standardized Patient simulations with a sample of 100 physicians in training in Puerto Rico. Results show a significant difference in the two groups’ means (p?<?.001), with a higher number of stigma behaviors in the HIV MSM patient condition (M?=?6.39) than the common cold control condition (M?=?5.20). Results evidence that stigma manifestations toward MSM with HIV may continue to be an obstacle for public health in Puerto Rico, and that medical training to prevent stigma is still needed.